Hearsay speech understanding system

E255799

The Hearsay speech understanding system is an early, influential AI project that pioneered blackboard architectures for integrating multiple knowledge sources in continuous speech recognition.

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Hearsay speech understanding system canonical 1

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Predicate Object
instanceOf artificial intelligence system
research prototype
speech understanding system
approach knowledge-based speech recognition
architecture blackboard architecture
component blackboard data structure
control mechanism for scheduling knowledge sources
knowledge sources
controlStrategy data-driven control
goal-driven control
opportunistic control
countryOfOrigin United States of America
surface form: United States
designedFor continuous speech input
speaker-independent recognition (research setting)
developedAt CMU
surface form: Carnegie Mellon University
field artificial intelligence
natural language processing
speech recognition
goal continuous speech understanding
impact influential in AI system architecture design
influential in speech understanding research
influenced later speech understanding architectures
subsequent blackboard systems in AI
method incremental hypothesis construction on a blackboard
notableFor continuous speech recognition
integration of multiple knowledge sources
pioneering blackboard architecture
represents acoustic, phonetic, syntactic, and semantic hypotheses
multiple levels of linguistic information
researchDomain speech understanding
researchParadigm cooperative problem solving
opportunistic reasoning
researchStatus experimental system
status historical AI system
timePeriod early 1970s
uses multiple cooperating knowledge sources

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Raj Reddy notableWork Hearsay speech understanding system